Been a while since I've posted some live stack results. Here's the latest effort from a few nights ago. All images captured via SC live stacking and saved as seen. This generates an 8 bit PNG image that I ran through Photoshop 2019 for color balance and a touch noise reduction.
Equipment:
RC 6 FL 1370 F/9, ZWO ASI183MC Pro, cooler at -15c, IDAS D1 LPS filter, using flat and dark master.
Used bin 2 to arrive at image scale .72 arcsec/pixel. If you follow link to Flicker you'll see capture details for each image.
M63 Sunflower Galaxy PS Edit Stack_53frames_6360s_WithDisplayStretch by Black Wikkett, on Flickr
M51 Whirlpool Galaxy PS Edit Stack_45frames_5400s_WithDisplayStretch by Black Wikkett, on Flickr
M13 Globular Cluster PS Edit Stack_12frames_1440s_WithDisplayStretch by Black Wikkett, on Flickr
M57 Ring Nebula PS Edit Stack_13frames_780s_WithDisplayStretch by Black Wikkett, on Flickr
Thanks for having a look. -Wikkett
Live Stack March 6 & 7 2019
Forum rules
Please upload large images to photo sharing sites (flickr, etc) rather than trying to upload them as forum attachments.
Please share the equipment used and if possible camera settings to help others.
Please upload large images to photo sharing sites (flickr, etc) rather than trying to upload them as forum attachments.
Please share the equipment used and if possible camera settings to help others.
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Re: Live Stack March 6 & 7 2019
Great shots!
Are you saying these are binned x2, using a colour camera?
I thought that binning destroyed the bayer colour info on an osc camera,
Or am i being thick
Are you saying these are binned x2, using a colour camera?
I thought that binning destroyed the bayer colour info on an osc camera,
Or am i being thick
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- Posts: 387
- Joined: Sat Jun 23, 2018 8:48 pm
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Re: Live Stack March 6 & 7 2019
Bin 2 and color is intact.
Re: Live Stack March 6 & 7 2019
I’ll have to have a go at that!
Thanks
Thanks
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Re: Live Stack March 6 & 7 2019
I can elaborate a little with my limited understanding.
Normal one shot color pixel
RG
GB
Bin2 OSC pixel ( something like this not 100% on this )
RGRG
GBGB
The normal bin 1 resolution of the camera is 5496 x 3672 at bin 2 2744 x 1836. The images posted are less than this. I forgot to mention in the original post that dithering is applied every 4 frames. This causes a significant border fringing (not sure what to call it but it's ugly) that was cropped out of final image.
Normal one shot color pixel
RG
GB
Bin2 OSC pixel ( something like this not 100% on this )
RGRG
GBGB
The normal bin 1 resolution of the camera is 5496 x 3672 at bin 2 2744 x 1836. The images posted are less than this. I forgot to mention in the original post that dithering is applied every 4 frames. This causes a significant border fringing (not sure what to call it but it's ugly) that was cropped out of final image.
Re: Live Stack March 6 & 7 2019
Ah right,
I understand.
And dithering is mandatory I feel to get rid of ‘colour mottle’ noise.
Certainly all working well for you
I understand.
And dithering is mandatory I feel to get rid of ‘colour mottle’ noise.
Certainly all working well for you
Re: Live Stack March 6 & 7 2019
The links below contain useful background information on binning.
viewtopic.php?f=35&t=262
https://www.swagastro.com/to-bin-or-not-to-bin.html
Dave
viewtopic.php?f=35&t=262
https://www.swagastro.com/to-bin-or-not-to-bin.html
Dave
Re: Live Stack March 6 & 7 2019
thanks Dave, good links indeed.